Electric swivel connecter



Oct. 10, 1933- c. H. GOLDEN ET AL ELECTRIC SWIVEL CONNEGTER Filed July 25, 1932 2 Sheets-Sheet 1 Charles GOMEIL,

BY flajiwra ATTORNEY Oct. 10, 1933. C H. GOLDEN ET AL 1,929,686

ELECTRIC SWIVEL CONNECTER Filed July 25, 1952 2 Sheets-Sheet 2 Charles H Golden,

170/21; 17. Smith,

INVENTORS (q BY aajzmrw WITNESS 5 ATTORNEY Patented Oet.10,1 9 33 4 8 1,929,686

two ,VQFFIQCE" V ;-"'1,9'29,6s6 a ,v I ELECTRIC SWIVEL GONN QTER Y Charles Golden, Green Island, and John I 'Baylus'Smith, Troy,.N. Y. l

- 7 '"ApplicationJuly 25,1932. serial Nc-. 624,522'. "restate.173459) The invention relates to aswivel "and more Figure 6 is a sectional View on the line 6j6' of especially to an electric' swivel connector for Figure 2 looking in the direction of the arrows. conductor leads or wires, i Figure 7 isa'sectional view on the line '7-' 7 The primary'object of the invention is the proof Figure '2 looking in the'direction of thearrows.

vision of a connecter of this" character, wherein Similar reference characters indicate" corre- 60 an electric cord as used with electricirons, cur-lspondingfpa'rts throughout the several views 'in ing irons, 'electric'hand drills. or other electric the drawings appliances will be prevented from twisting dur- Referring to the drawings in'det'ail, the coning the use of such appliances and thus obviatnecter," in this instance g'iomprises the'male and 10 ing any interruption inthe flow of electric'curfe'male'sections 10 and 11 'resp'ectivelyof 'a}hous'-, 65 rent aswellas avoiding damage to the leads or ing or shell, the male member havinga reduced wires which ordinarily results from distortion, innerend-12 for telescopic fittingwithin: the rim twistor bending-of the leads or wires during use. 13 at the inner end "of I the female section 11,

Another object of the invention is the provision while externally of said male section-contiguous 16 of a connecter of this character, wherein it is to the reduced inner end 12 is an annular bead 70 made of separable sections so that these sections 13 with which are engageable hand releasable may be detached from each other, the connecter spring latches or catches 14, these being riveted being of novel form to assure against interruption or otherwise made fast externally to the rim 13 of electric current to the appliance during the of the section 11 and in this manner these secuse thereof and without the twisting of the leads tions are detachably joined with eachother. 75

or wires for current supply thereto. The sections 10 and 11 are axially bored to pro- A further object of the invention is the provide the circular way or 'bore 15 centrally therevision of a connecter of this character, wherein through and loosely fitted in the bore or way 15 a perfect swivel is had between the separable in both sections 10 and 11 are the tubular stems sections thereof, thereby permitting in its use the 16 and 17 respectively, the. stem 16 being com- 80 proper manipulation or handling of an electrical mon to the section 10 and the stem 17 common to appliance without interruption of current or the section 11 while at the inner ends of said twist or undue distortion of the leads or wires stems are heads 18, these and likewise the stems delivering current thereto. 16 and 17 being made from insulating-material.

A still further object of the invention is the One of the heads 18 is formed with the extensions 85 provision of a connecter of this character which or flanges 19 while the other head 18 is formed 7 is comparatively simple in construction, thorwith an annular channel or groove 20 receiving oughly reliable and efiicient, compact, strong, said extensions 19 which are adapted to travel durable, and. inexpensive to manufacture. within the groove or channel '20 on the interfit- With these and other objects in view, the inting thereof and the heads 18 rotatably confined '90 vention' consists in the features of construction, within the rim 13 of the section 11 when joined combination d arrangement of parts as will with the section 10. The sections 10 and 11 are be hereinafter more fully described in detail, illusmade from insulating material. trated in e acwmpanying drawings, w c 1 Carriedby the heads 18 at their faces confront- -40 close the preferred embodiment of the inv ning each other when confined within the rim 13 '95 tion, and pointed out in the claims hereunto apare circular inner and outer concentrically arpended. ranged spaced terminal contacts 21 and 22 respec- In t e p y g drawings: tively, the inner contacts 21 being centered with Fi u 1 is a sid vati n f a c nn t r onrespect to the sections 10 and 11 while supported structed in accordance with the invention. by one inner contact,21 and one outer contact 22 100 Figure 2 is a fragmental vertical sectional View are the roller wipers 23 and 24, preferably there through a connecter constructed in accordance being two aligned roller wiperswith the inner with the invention and taken approximately on contact and three roller wipers with the outer the line 2- o Figure contact, these traveling on the remaining inner- Figure 3 is a sectional view on the line 33 of and outer contacts, while trained through thex-l05 Figure 2 looking in the direction of the arrows. stems 16 and 17 are the conductor wires 25, these Figure 4 is a sectional view on the line 4 4 of being joined at their, terminals with the said con- Figure 2 looking in the direction of the arrows. tacts 21 and 22 for a completion of an electric Figure 5 is a sectional view on the line 55 of circuit through the connector withswivel action Figure 2 looking in the direction of the arrows. 7 between the sections 10 and 11 thereof.

The heads 18 have anchored thereto backing plates or disks 26 against which play bearing balls 2'7, these being held in cages 28 built upon follower disks 29 within sockets 30 in the respective sections 10 and 11, while working against the follower disks 29 are coiled expansion springs 31, these being seated in the said sockets 30 and urge the disks 29 in the direction of the heads 18 with the'balls 2'7 working upon the plates or disks 26 and in this fashion the heads 18 are yieldably forced toward each other for maintaining an electrical connection with the contacts 21 and 22 through the instrumentality of the wiper wheels 23 and 24 within the connecter. It should be apparent that the heads 18 are free for independent relative rotation with respect to each other so that the wires or leads 25 cannot become twisted nor distorted and these wires or leads 25 are for use as an electric cord of electric appliances.

The stem 16, in this instance, is formed with an annular flange 32 having a knurled periphery 33 while the outer end of this stem is constructed to' provide a screw attaching terminal 34 for a plug of'theconnecter, the flange 32 with the knurled edge 33 being a hand turning medium for the engagement of the terminal 34 inan electric fixture socket. The terminal 34 is fitted with the center electric contact 35 and the screw thimble or sleeve contact 36, these being of conven-- tional make-up.

It should be apparent that the connecter is highly efficient and serviceable and is in its nature a swivel joint for obtaining a free swiveling action cop with continuous electric conducting paths for the current and in the use the conductors, wires, leads or the like, there being but two shown yet a greater number may be employed with the connecter, the same will be prevented from twisting or becoming entangled one with the other when they are used for supplying electric current to electrical appliances. 7 What is claimed is: a 1 A connecter of the character described comprising a sectional shell with the sections separably connected, a rim formed on one section, a reduced portion formed on the other section and telescoped in the rim, heads confined within the rim between the sections and rotatable relative to each other, stems on said heads and passed loosely through the sections exteriorly thereof and adapted to accommodate electric wires, contacts carried by the heads and having the wires connected therewith, resilient means within the sections and active upon the heads to move the same toward each other for the engagement of the contacts, wiper rollers acting between the contacts, backing plates on the heads, bearing rollers included in said means and working against the backing plates, a screw plug terminal on one of the stems, the wires in one stem being connected to the plug terminal and a knurled annular flange on the stem and next to the said screw terminal for permitting the turning of said stem for the detachable engagement of the screw terminal in an electric lamp socket.

CHARLES-HENRY GOLDEN. 1

JOHN BAYLUS SMITH.

i 1& 

